65476553 has 2 divisors, whose sum is σ = 65476554. Its totient is φ = 65476552.

The previous prime is 65476529. The next prime is 65476559. The reversal of 65476553 is 35567456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63552784 + 1923769 = 7972^2 + 1387^2 .

It is a cyclic number.

It is not a de Polignac number, because 65476553 - 2⁸ = 65476297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65476553.

It is not a weakly prime, because it can be changed into another prime (65476559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32738276 + 32738277.

It is an arithmetic number, because the mean of its divisors is an integer number (32738277).

Almost surely, 2^65476553 is an apocalyptic number.

It is an amenable number.

65476553 is a deficient number, since it is larger than the sum of its proper divisors (1).

65476553 is an equidigital number, since it uses as much as digits as its factorization.

65476553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 41.

The square root of 65476553 is about 8091.7583379634. The cubic root of 65476553 is about 403.0527939341.

The spelling of 65476553 in words is "sixty-five million, four hundred seventy-six thousand, five hundred fifty-three".